Ring-driven shear thickening in wormlike micelles?

M E Cates, S J Candau

Research output: Contribution to journalArticlepeer-review

Abstract

The shear-thickening behaviour of wormlike micelles, at concentrations just below overlap, remains unexplained. In some cases, it has recently been confirmed that very slow relaxations must be present even in the quiescent state for example, the shear-thickening properties can depend on earlier thermal cycling. We present a speculative scenario based on the presence, just below the ( apparent) overlap threshold, of large rings whose linking and delinking kinetics control the shear-thickening process. Equilibration between rings and open chains in turn controls the slow relaxations.

Original languageEnglish
Pages (from-to)887-893
Number of pages7
JournalEurophysics Letters
Volume55
Issue number6
DOIs
Publication statusPublished - Sep 2001

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